Hoist



Dec. 7 1926.

S. BERGLING ET AL HOIST Filed June l5.

1925 8 Sheets-Sheet 1 lari /der 7b,

Wim 55 ff J4 s. BERGLING ET AL HOIST Filed June l5, 1925 8 Sheets-Sheet 2 Dec. '7, 1926. 1,609,599

S. BERGLING ET AL HOIST Filed June l5 1925 8 Sheets-Sheet 3 Dec. 7 1926. 1,609,599 f s. BERGLING ET Ax.

HOIST Filed June 15. 1925 8 Sheets-Sheet 4 'l @www/J l" Dec. 7 1926.

s. BERGLING ET A1.

HOIST Filed June l5, 1.925 8 Sheets-Sheet 6 I if a ZZ m.

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Y s. BERGLING E'r AL HOIST Filed June 1.54 1925 8 Sheets-Shet '7 71111 'lll/L vll/1 l Ziff/zinns:

Dec. 7 1926.l 1,609,599

s. BERGLING ET AL Patented Dec. 7, r1926. Y

UNITED STATES PATENT orrice.

SWEN BEBGLING ANIJKARL ANDERSON, F CHCAGO, TLLINOIS, ASSIGNORS TO RE- LIABLE I-IOIST COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION.

I-IOIST.

Application filed June 15, 1925. Serial No. 37,049.

Our inventi-on relates to improvements in hoists especially adapted for use in building operations or the like, the object of the invention being to provide a simple, durable and efficient apparatus of this character.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by Areference to the accompanying drawings, forming a part of this specification and in which,

Fig. 1 is a side view of a portion of a hoisting apparatus embodying the invention;

F Fig. 2 a top plan view .corresponding with ig. 1; K

Fig. 3 a horizontal section taken substantially-on line 3-3 of Fig. 1; y

Fig. 4 a vertical section taken substantially on line 4-4 of Fig. 1;

Fig. 5 a partial view taken substantially on line 5-5 of Fig. 3;

Fig. 6 a detail section taken substantially on line 6-6 of Fig. 5;

Fig. 7 a partial elevation of a pair of elevators and their shafts arranged for operation by the hoist;

Fig. 8 a view at right angles to Fig. 7; and

Fig. 9 a top plan view of the eleva-tor shaft.

The preferred form of construction as i1- lustrated in the drawings comprises a suitable frame 10 having a gear 'casing 11 mounted thereon. Arranged in the gea-r casing 11 are two axially aligning winding shafts 12 and 13, the shaft 12 carrying a winding drum 14 and the shaft 13 carrying a winding drum 15. A hoisting cable 16 is partially wound upon the drums 14 and 15, said cable being passed over guide pulleys 17 between said drums so as to permit of the free `travel of said hoisting cable from one drum t-o the other. Each of the guide pulleys 17 is arranged with itsrguide grooves substantially tangentiall t-o the correspondv ing winding drum and said guide pulleys are also arranged tangentially to each other. In this way a simple and effective guide for the hoisting cable from one drum tothe other is provided which can be arranged in small space, which permits ^f wide separation of the hoisting` drums, and which will adequately guide the hoisting cable during operation. As will be noted the hoisting cable 16 is similarly wound on each drum so that rotation of the drums 14 and in the same direction will cause winding up and retraction of the corresponding end of the hoisting Cable.

The shafts 12 and 13 are provided at their inner ends with enlarged bearing heads 18 and an operating shaft V19 is mounted in the bearings in said Abearing heads, the shafts 12, 13 and 19 being thus mount-ed in axial alignment with each other. The oper` ating shaft 19 carries a central driving gear 2O and clutch members 21 and 22 are arranged on the opposite sid-es of the hub of said driving gear as best shown in Fig. 4. Corresponding shiftable clutch members 23 and 24 are splined ony the corresponding shaft heads 18 and whereby said clutch members 23 and 24 may be shifted into and out of engagement with the clutch members 21 and 22 so as to drive either of the shafts 12 or 13 `and release the other. As best shown in Fig. 3 the clutch members 23 and 24 are operatively connected with rocker arms 25 and 26y secured to vertical rocker shafts 27 and 28 which are extended through the top of the gear casing 11. As best shown in Fig. 2 the upper ends of the shafts 27 and 28 carry rocker arms 29 connected by a link 30 compelling simultaneous operation of said rocker shafts and consequently of the clutch members 23 and 24 in opposite directions. Shaft 28 carries a rocker arm 31 connected by a link 32 with a rocker arm 33 on the upper end of a rocker shaft 34 eX- tending vertically adiacent one end of the gear casing 11. The rocker arm 34 carries an operating lever 35 for rocking the same. As best shown in Figs. 5 and 6 the lever 35 carries a double acting cam head 36 which is in substantially inverted V-form and normally engages a corresponding recess ina Vcam block 37 mounted on rocker arms 38 secured to a transverse rocker shaft 39. The Y Cil rection to rock the shaft 35 to correspond. As the lever shifts in either direction the cam head 3G operating on the cani block 37 raises the rocker arms 3S to roel; the rocker shaft 39 upwardly, thus sin'niltaneously releasing the brake bands from the brake drums e3. Each of the brake bands is anchored by the link it? to a corresponding post or abutment #i7 on the frame 10 and the roch-er shaft 39 is provided with a. depending rocker arm QCS connected with a tenson .spring #i9 adjnstably secr by a rod i() to a post or abutment 5l on ine frame l0. By this arangeinent it will be observed that the brake'bands 42 ivill be normally held in operative einigem-ent vvith the brake drums et?) by the spring lit) but that upon shifting of the l-ever 35 in either direction said braise bands will be released thus freeing the corresponding Wind-ing drums.

As best shovvn in Fig. 3 the driving gear Q0 is connected` with a pinion 52 on a shaft 53 connected by a gear with a pinion 55 on shaft The shaft 56 is connected by a gear 5T with a pinion 5S on shaft 59 of the motor GO as best shown in Figs. l and Q. The. motor GO is operated to keep the driving gear 20 constantly rotating in the same direction but at relatively slower speed. It willi be` notedi that by shifting the cable il in either direction the* corresponding drum 11i or l5 as thev case may be will be operated to Wind up or retract the* corresponding end of the hoisting cable 16 and pay out the other end thereof and that when said operating cable isishifted'back to normal position the operation of bothv drums ivill cease and the corresponding brake bands automatically applied to` stop the' movement of thehoist-ing cable; The ends of the hoisting cable 16 are passed over suitable guide pulleys as best shown in Figs. 7, 8 and 9` and connected ivitlii the elevator cages G1 operating in elevator shafts 62 in the usual Way. The ends of operating cable Ltet are similarly passed over suitable guide pulleys and also over` the operating pulley (S3 at the top of the elevator shafts and n'iounted on a rocker shaft Gil as shown.l the ends ot the cable 4l being' joined together. The. rocker shaft 64e carries a rocken lever G5 tothe opposite ends of'ivhieh are connected depending operating cables-GG and whereby the pulley'GB may be oscillated' ineither direction to cause corresponding operation of the operating' cable ist and corresponding operation of the lever 35 to start,istop and1 reverse the hoisting mechanism to control theoperation of the elevator cages G1` as Will be readily understood'. Adjustable stop blocks 6T are mounted' on the cable' #Ltt and the cable ett is run through stop blocks 68 on the elevator cages 6l and whereby by adjusting'the stop blocks 67 properly the elevator cages will be caused to automatically stop at any selected or convenient elevation as Will be readily understood.

The construction disclosed is a simple and eiicient hoisting apparatus especially adapted for use in building operations and tl e like which may be readily controlled manually from any desired location and which will automatically stop the cages at any desired elevation.

1While ive have illustrated and described the preferred form of construction for carrying our invention into effect, this is capable 0f variation and modification without departing from the spirit of the invention. lVe, therefore, do not Wish to be limited to the precise details of construction set forth but desire to avail ourselves of such varia tions and modifications as come within the scope of the appended claims.

lilaving described our invention, what ive claim as neiv ancldesire to` secure by Letters Patent is:

l. A hoist compris-ing tivo axially align- .ing Winding shafts ;4 Winding drums on said shafts; an operating shaft between lsaid Winding shafts and azeiallylaliigning therewith; a driving gear and double clutch member on said opera-ting shaft; a shiftable clutchl member on each of said Winding shafts independent of the corresponding drum; means for shifting said shiftable'clutch members alternately into and out of engagen'ient ivith said double clutch and a hoisting cablepartially Wound on said drums, substantially as described.

2. A hoist comprising tivo axially aligning Winding shafts; Winding drums on said shafts; an operatingshaft betiv'een said Winding shafts and axially aligning thereivith, there being bearings formed in the adj-a lent.- ends of saidy winding shafts and said operating shaft being mounted in said bearings: a driving gear and double clutch member on said operating` shaft;` a sbiftable clutch member on each of said winding shafts; means for shifting said shiftable clutch members alternately into and out vof engagement With said double clutch; and a hoisting cable partially Wound on said drums, substantially as described.

El. A hoist comprisingv two axially aligning Winding shafts; Winding drums on said shafts; an operating shaft between said winding shafts and axially aligning-therewith: a driving gear and double clutch member on said operating shaft: a` shiftable clutch member on` each of said winding shafts: means for shifting said shiftable clutch members alternately into and out of engagement with said double clutch guide pulleys arranged between said drums; and a hoisting cable partially Wound on said drums and passing over said guide pulleys, substantially as described.

lli)

iii)

.- ft .A Il1QSt.-eoiprisiag two axially aligning ,winding shafts; Wm.' ng drums .G11 sind shafts; an operating sliaftbetween said wnd.ngashafts and axlally .aligning there with; there being eai ngs. formed gin 'the adjacent ends o'ffs'a'itl winding shafts and Sala .cpemnagshaft 'b bearings; La .dri.vingA g mounted in Csaid i and vdouble clutch if meiliber Qn sai-d opm'a ng shaft; alshifft'able A.Substantalli" .pnl sarranged'betweensaid pt liuins; and Vwound on said 1guide pulleys,

.'Scrbe'd- 5." Atheist compris'rfg'two axially aligningsyvindingishaffts; inding drums on said S'S itil' :DPP-fitti winding shafts.' andixially aligning therewith; a driving gear and double f clutch member on said operating shaft; a shiftable clutch member on each of said winding shafts; means for alternately shifting said shiftable clutch members into and out of engagement with said double clutch and releasing the other winding shaft for reverse operation; and a hoisting cable partially wound on said drums, substantially as described.

6. A hoist comprising two axially aligning winding shafts; winding drums on said shafts; an operating shaft between said winding shafts and axially aligning therewith; a driving gear and double clutch member on said operating shaft; a shiftable clutch member on eachv of the winding shafts; a brake for each" of said drums; means for alternately shifting said clutch members to cause positive operation of one of said drums and release of the other drum for reverse Operation and simultaneous release of said brake; and a hoisting cable partially wound on said drums, substantially as described. Y

7. A hoist comprising two axially aligning winding shafts; winding Ydrums on said shafts; an operating shaft between said winding shafts and axially aligning therewith? a driving gear and double clutch member on said operating shaft; a motor; a reducing chain of gears connecting said motor with said driving gear; a shiftable clutch member on keach of said winding shafts; a brake for each of said drums; means for alternately shifting said shiftable clutch membersinto andout of engagement with said double. clutch and simultaneously drums andpaSS. g over releasing said. brakes; and a hoisting cable partially wound on said drums, substantially as described.

' 8. A hoist comprising two axially aligning winding shafts; Winding drums on said shafts; an operating shaft between said 'shaft between said withmsaid double-clutch and simultaneously releasing said brakes; a hoisting cable {par- J" fly Awoundon said drums; and an operative connection between said hoisting cable .andthe means for Ashifting ysaid clutclrmem- `rbers,andreleasingsaid brakes arranged to antoniaticaily shift said 'clutch members and :ieease said brakesatpredetermined points 'of operation of said cable, substantially Vas described.

Aing winding shafts; windin'gdrums on said shafts; an operating shaft between said winding shafts and axially aligning there-V with; a driving gear and double clutch member on said operating shaft; a shiftable clutch member on each of said winding shafts and arranged to be shifted into and out of engagement'with the corresponding double clutch member on said operating shaft; rocker shafts operatively connected with lsaid shiftable clutch member; an opera` tive connection between said rocker shafts compelling simultaneous .operation thereof; manually operable means for operating said rocker shafts to shift said clutch members into'and out of engagement with said double clutch member; and a hoisting cable par-- tially wound on said drums; substantially as described.

l0. A hoist comprising two axially aligning winding shafts; winding drums on said shafts; a hoisting cable partially wound on said drums; an operating shaft between said winding shafts and axially aligning therewith; a driving gear and double clutch.-

member on said operatingV shaft; a shiftable clutch member on each of said winding shafts and shiftable into and out of engagement with said double clutch member; a brake drum operatively connected with eachv of said winding drums; a brake band for each of said drums; a pair of interconnected rocker shafts operatively connected with said shiftable clutch members; a rocker shaft operatively connected .with said brake bands; a spring normally holding said brake bands in engagement'with their drums; and Y manually operable means for simultaneously operating said rocker shafts to shift said shiftable clutch members and release said brake bands, substantially as described.

ll. A hoist comprising two axially aligning winding shafts; winding drums on said shafts; a Vhoisting cable partially wound on saidV drums; an operating shaft between said Atheist comprising two axially ali-gn winding shafts and axially aligning therewith; a driving gear and double Clutch member on said operating shaft; a shiftable clutch member on each of said winding shafts and shiftable into and out of engagement with said double clutch member; a brake drum operatively connected with each et said w` iding drums; a brake band for each of said drums; a pair of interconnected rocker shafts operatively connected with said shiftable clutch members; a rocker shaft operatively connected with said brake bands; a spring normally holding said brake bands in engagement with their drums; a third rocker shaft operatively connected with said clutch shifting rocher shafts; a lever arm for operating said third rocker shaft; a double acting cam head on said lever arm; a rocker arm on said brake 0perating rocker shaft carrying a cam block cooperating with said cam head on said lever arm for operating said brake rocker shaft; and an operating cable operatively Connected with said lever arm, substantially as described.

12. A hoist comprising two axially aligning drums; guide pulleys between said drums; ay hoisting cable partially wound on said drums and extending over said guide pulleys; clutch mechanism for rotating each of said drums and releasing the other; brake mechanism for each of said drums; a spring normally applying said brake mechanisms; an operating cable; and means operable by said operating Cable for simultaneously shifting said eluteh mechanisms to operate either ot' the said drums and release said brake, substantially as described.

In testimony whereof we have signed our names to this speciieation.

SE'N BERGLING. KARL ANDERSON. 

